Confusion Over Codex Model Selection and Usage Limits
django-unchained2012 · reddit · 2026-07-13
As a Claude Pro user who switched to ChatGPT Plus, the author tried using Codex to develop an offline Android health tracking app but quickly ran into usage limits.
They are confused by the usage rules for tiers like Terra / Sol / Luna and low, medium, high, max, especially wondering why seemingly "similar models" like Terra also burn through quota quickly. In contrast, they feel Claude's Fable is more practical under the Pro plan, noting a useful strategy where a stronger model drafts the implementation plan before a weaker model executes it when quota runs low.
Ultimately, the post asks Codex veterans for better strategies regarding model/tier selection and usage to avoid wasting quota.
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